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On a very warm day(30oC) you are sitting at the shallow end of a swimmingpool teaching a young child to swim. When someone jumpsoff the diving board in the deep end, the child (with headunder water) hears the splash 0.11 s before you. How long is the pool? Assume the speed of sound in water is 1500 m/s forthis pool.
An ambulance traveling at 46 m/s approaches a car heading in the same direction at a speed of 31 m/s. At what frequency does the driver of the car hear the siren
A thin spherical shell of silver has an inner radius of 2.20 10-2 m when the temperature is 17° C. Find the change in the interior volume of the shell
A stunt car driver negotiates the frictionless track shown in such a way that the car is barely on the track at the top of the loop. The radius of the track is 9.9 m and the mass of the car is 1800 kg. Find the force of the car on the track when the ..
A guitar string is 91.00cm long and has a mass of 3.6g. From the bridge to the support post (= L) is 60 cm, and the string is under a tension of 551 N.
The eukaryotic ribsome is an extremely large macromolecular complex that may be 25 nanometers in diameter or larger. Estimate the diffusion constant of a ribosome in m2/sec and Picometers2/sec.
To the left of the lens is a cube having a face area of 100 cm2. Determine the area of the image
three charges each of magnitude 7 nc are at separate corners of a square of edge length 7 cm. the two charges at
a plate capacitor has a spacing between its plates of 5.0 mm and a potential difference of 3.0 103 v across its plates.
A light bulb is connected to a 120 V wall socket. The current in the bulb depends on the time t according to the relation I = (1.414 A) sin[ (125.6 Hz) t ]. What is the average power delivered to the light bulb
0.550-kg glider, attached to the end of an ideal spring with force constant k = 440 N/m, undergoes SHM with an amplitude 0.040 m. Compute the maximum speed of the glider
A car of mass 1440 kg rests on a hydrauliclift with a piston of radius 0.26 m thatis connected to a second piston of radius 0.031 m. what is the force at the second piston
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. how much force is applied to the branch
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